Nuclear Magnetic Resonance and Components MCQs Questions Answers
The Propene, as well as the 2-Butene(cis), always show an equal number of signals in their NMR spectra.
(A). Â False
(B). Â True
(E). None of these
Multiple Choice Question Answer:Â a
With respect to one component system, the mixture that is present at the triple point is ______
(A). Â Water
(B). Â Ice
(C). Water, ice, vapor
(D). Â Water vapor
(E). None of these
Multiple Choice Question Answer:Â c
What is degree of freedom for sublimation curve?
(A). Â 0
(B). Â 1
(C). Â Does not exist
(D). Â 2
Answer c
Under which of the following condition the one-component system is converted into two-component systems?
(A). Â Decrease the temperature
(B). Â Decrease the pressure
(C). Â Add an immiscible liquid
(D). Â Add a miscible liquid
(E). None of these
Multiple Choice Question Answer: Â d
In _________ ways –CH3 protons can be coupled with protons on the adjacent carbon atom relative to their external field.
(A). Â 1
(B). Â 4
(C). Â 3
(D). Â 2
(E). None of these
Multiple Choice Question Answer: Â b
For the NMR spectrum, we use the carbon tetrachloride and water successfully as a solvent.
(A). Â False
(B). Â True
(E). None of these
Multiple Choice Question Answer:Â b
Which of the following is the number of phases at the sublimation curve?
(A). Â 4
(B). Â 3
(C). Â 2
(D). Â 0
(E). None of these
Multiple Choice Question Answer:Â a
Under which of the following condition the two-component system is converted into one component system?
(A). Â Decrease the temperature
(B). Add an immiscible liquid
(C). Â Â Add a miscible liquid
(D). Â Decrease the pressure
(E). None of these
Multiple Choice Question Answer: Â b
The degree of freedom for the decomposition of potassium permanganate will be ______________
(A). Â 3
(B). Â 1
(C). Â 2
(D). Â 0
(E). None of these
Multiple Choice Question Answer: Â c
Which of the following is are the number of signals in 1-propanol and in 2-propanol?
(A). Â 3, 4
(B). Â 4, 2
(C). Â 2, 4
(D). Â 4, 3
(E). None of these
Multiple Choice Question Answer: Â d
_______ is inversely proportional to the chemical shifts positions ((D).
(A). Â Operating frequency of the instrument
(B). Â Frequency of TMS
(C). Frequency of unknown group of protons
(D). Â All of these
(E). None of these
Multiple Choice Question Answer: Â a
The horizontal arrest in a cooling system refer to _______
(A). Â Continuous cooling
(B). Bi variant reaction
(C). Â Variant reaction
(D). Â Invariant reaction
(E). None of these
Multiple Choice Question Answer: Â d
The degree of freedom for decomposition of charcoal will be ______
(A). Â 3
(B). Â 2
(C). Â 1
(D). Â 0
(E). None of these
Multiple Choice Question Answer: Â a
The degree of freedom for the following reaction will be _______CH4 ⟶ CO2 (gas) + 2H20
(A). Â 4
(B). Â 3
(C). Â 2
(D). Â 6
(E). None of these
Multiple Choice Question Answer: Â c
Which of the following is The number of different orientations which a magnetic nucleus can take?
(A). Â 2I
(B). Â 4I
(C). Â 2I+1
(D). Â 2I-1
(E). None of these
Multiple Choice Question Answer: Â d
The nuclei with a spin quantum number greater than which of the following that can exhibit the NMR phenomenon?
(A). Â 5
(B). Â 0
(C). Â 10
(D). Â -5
(E). None of these
Multiple Choice Question Answer: Â b
Which of the following is the Number of NMR signals obtained in CH3COCH3?
(A). Â 6
(B). Â 1
(C). Â 2
(D). Â 3
(E). None of these
Multiple Choice Question Answer: Â b
What does the NMR spectra of the functional isomers of the molecular formula C2H6O show signals respectively?
(A). Â 1, 3
(B). Â 1, 2
(C). Â 1, 4
(D). Â 1, 5
(E). None of these
Multiple Choice Question Answer: Â a
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